added functionality

app.py

@@ -0,0 +1,39 @@
+from flask import Flask, render_template, jsonify
+import subprocess
+import platform
+import json
+import threading
+import time
+
+app = Flask(__name__)
+
+def ping(host):
+    param = '-n' if platform.system().lower() == 'windows' else '-c'
+    command = ['ping', param, '1', host]
+    return subprocess.call(command, stdout=subprocess.DEVNULL) == 0
+
+def load_config():
+    with open('config.json') as f:
+        return json.load(f)
+
+device_status = {}
+
+def update_status():
+    while True:
+        config = load_config()
+        for device in config['devices']:
+            device_status[device['name']] = ping(device['ip'])
+        time.sleep(config['check_interval'])
+
+@app.route('/')
+def home():
+    return render_template('index.html')
+
+@app.route('/api/status')
+def status():
+    return jsonify(device_status)
+
+if __name__ == '__main__':
+    status_thread = threading.Thread(target=update_status, daemon=True)
+    status_thread.start()
+    app.run(debug=True)